Adjustable pipeline magnetic flux leakage detection device

Abstract

The utility model discloses an adjustable pipeline magnetic flux leakage detection device which comprises a pipeline magnetic flux leakage detection joint, a cleaning ring frame and a pressure adjusting supporting ring frame, and the cleaning ring frame and the pressure adjusting supporting ring frame are installed on the two sides of the pipeline magnetic flux leakage detection joint. A plurality of annularly distributed cleaning telescopic rod mounting holes are formed in the cleaning ring frame, cleaning rotary telescopic rods are mounted in the cleaning telescopic rod mounting holes, the top ends of the cleaning rotary telescopic rods extend to the outer side of the cleaning ring frame and are provided with cleaning splicing rings, and trundle rotary telescopic rods are mounted in trundle rod holes; one end of the trundle rotating telescopic rod extends to the outer side of the pressure adjusting supporting ring frame and is connected with a pipeline inner wall rolling wheel through a pressure sensor. The device has the beneficial effects that cleaning of the head end can be achieved, cleanliness of the inner wall of a pipeline in the detection process is guaranteed, the accuracy of the detection process is improved, the cleaning end is adjustable, and the application range is wide.

Description

Technical Field

[0001] This utility model relates to the field of pipeline inspection, and in particular to an adjustable pipeline magnetic flux leakage detection device. Background Technology

[0002] Currently, magnetic flux leakage (MF) detection devices are commonly used in pipeline inspection. They are typically installed inside oil pipelines to inspect the pipeline walls, thereby determining the extent and location of damage. Existing MF detection devices often use suitable pipe wheels to support the MF detection section at both ends, and are moved forward by external force. During this movement, impurities remaining on the pipeline inner wall may fall onto the MF detection section or adhere to the pipeline inner wall, causing errors in the detection process and affecting accuracy. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable pipeline magnetic flux leakage detection device in order to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] An adjustable pipeline magnetic flux leakage detection device includes a pipeline magnetic flux leakage detection section, a cleaning ring frame, and a pressure regulating support ring frame. The cleaning ring frame and the pressure regulating support ring frame are installed on both sides of the pipeline magnetic flux leakage detection section. The cleaning ring frame has several annularly distributed cleaning telescopic rod mounting holes. A cleaning rotating telescopic rod is installed in each of the cleaning telescopic rod mounting holes. The top end of the cleaning rotating telescopic rod extends to the outside of the cleaning ring frame and is fitted with a cleaning splice ring. The pressure regulating support ring frame has several caster rod holes. A caster rotating telescopic rod is installed in each of the caster rod holes. One end of the caster rotating telescopic rod extends to the outside of the pressure regulating support ring frame and is connected to a pipeline inner wall roller through a pressure sensor. A wireless controller is installed on the outside of the pressure regulating support ring frame. An electric drive unit is installed inside both the cleaning ring frame and the pressure regulating support ring frame.

[0006] Furthermore, the cleaning rotating telescopic rod consists of an outer cylinder, an inner cylinder, and a lead screw. A limit ring is installed at the top of the outer cylinder, the bottom of the inner cylinder extends into the outer cylinder through the limit ring, and the top of the lead screw is screwed into the interior of the inner cylinder.

[0007] Furthermore, the inner ring side of the limiting ring is provided with a limiting protrusion, and the outer wall of the inner cylinder is provided with a limiting groove, and the limiting protrusion is inserted into the limiting groove.

[0008] Furthermore, the cleaning ring is composed of several deformation strips, and a cleaning strip is installed on the outer side of the deformation strips.

[0009] Furthermore, the electric drive unit consists of a motor and a bevel gear set, wherein the bevel gear set consists of a motor bevel gear and a lead screw bevel gear meshing together, and the lead screw bevel gear is mounted on the lead screw.

[0010] Furthermore, a battery box is installed on the end side of the cleaning ring frame, and the battery box is provided with a pull ring.

[0011] The beneficial effects are: it can achieve cleaning at the beginning, ensure the cleanliness of the inner wall of the pipe during the testing process, improve the accuracy of the testing process, and its cleaning end is adjustable, making it widely applicable. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an adjustable pipeline magnetic flux leakage detection device according to the present invention;

[0013] Figure 2 This is a side view of the cleaning ring frame of the adjustable pipeline magnetic flux leakage detection device described in this utility model;

[0014] Figure 3 This is a schematic diagram of the rotating telescopic rod assembly of an adjustable pipeline magnetic flux leakage detection device according to this utility model.

[0015] The annotations in the attached figures are explained as follows:

[0016] 1. Pipeline magnetic flux leakage detection section; 2. Cleaning ring frame; 3. Pressure regulating support ring frame; 4. Cleaning rotating telescopic rod; 5. Deformation strip; 6. Cleaning strip; 7. Bevel gear set; 71. Motor bevel gear; 72. Lead screw bevel gear; 8. Motor; 9. Caster rotating telescopic rod; 10. Battery box; 11. Pressure sensor; 12. Pipeline inner wall roller; 13. Wireless controller; 14. Outer cylinder; 15. Inner cylinder; 16. Lead screw; 17. Limiting ring; 18. Limiting protrusion; 19. Limiting groove; 20. Cleaning splice ring. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] like Figures 1-3 As shown, an adjustable pipeline magnetic flux leakage detection device consists of a pipeline magnetic flux leakage detection section 1, a cleaning ring frame 2, and a pressure regulating support ring frame 3;

[0019] The cleaning ring frame 2 and the pressure regulating support ring frame 3 are installed on both sides of the pipeline magnetic leakage detection section 1. The pipeline magnetic leakage detection section 1 is a commonly used pipeline magnetic detection structure. The cleaning ring frame 2 is provided with several ring-shaped cleaning telescopic rod mounting holes. A cleaning rotating telescopic rod 4 is installed in the cleaning telescopic rod mounting holes. The top of the cleaning rotating telescopic rod 4 extends to the outside of the cleaning ring frame 2 and is equipped with a cleaning splice ring 20. There are at least two sets of cleaning splice rings 20, which are staggered.

[0020] The pressure regulating support ring frame 3 is provided with several caster rod holes. A caster rotation telescopic rod 9 is installed in the caster rod holes. One end of the caster rotation telescopic rod 9 extends to the outside of the pressure regulating support ring frame 3 and is connected to the inner wall roller 12 of the pipe through the pressure sensor 11. A wireless controller 13 is installed on the outside of the pressure regulating support ring frame 3.

[0021] Both the cleaning ring frame 2 and the pressure regulating support ring frame 3 are equipped with electric drive units, which are used to drive the cleaning rotating telescopic rod 4 and the caster rotating telescopic rod 9 to extend and retract.

[0022] like Figures 1-3 As shown, this utility model also discloses the following more optimized specific structures:

[0023] The cleaning rotating telescopic rod 4 consists of an outer cylinder 14, an inner cylinder 15, and a lead screw 16. A limit ring 17 is installed at the top of the outer cylinder 14, and the bottom of the inner cylinder 15 extends into the outer cylinder 14 through the limit ring 17. The top of the lead screw 16 is screwed into the interior of the inner cylinder 15.

[0024] The inner ring side of the limiting ring 17 is provided with a limiting protrusion 18, and the outer wall of the inner cylinder 15 is provided with a limiting groove 19, into which the limiting protrusion 18 is inserted.

[0025] The cleaning ring 20 is composed of several deformation strips 5. The deformation strips are deformed after being squeezed by the inner wall of the pipe, so that they match the shape of the inner wall of the pipe. A cleaning strip 6 is installed on the outside of the deformation strip 5.

[0026] The electric drive unit consists of a motor 8 and a bevel gear set 7. The bevel gear set 7 consists of a motor bevel gear 71 and a lead screw bevel gear 72 meshing together. The number of lead screw bevel gears 72 matches the number of lead screws 16, and the lead screw bevel gears 72 are mounted on the lead screw 16.

[0027] A battery box 10 is installed on the end side of the cleaning ring frame 2, and a pull ring is provided on the battery box 10.

[0028] like Figures 1-3When the adjustable pipeline magnetic leakage detection device shown is in use, the motor 8 rotates, causing the cleaning rotating telescopic rod 4 and the caster rotating telescopic rod 9 to retract, making them much smaller than the inner diameter of the pipe. Then, the whole device is placed into the pipe. The motor 8 is started, causing the cleaning rotating telescopic rod 4 and the caster rotating telescopic rod 9 to expand onto the inner wall. The cleaning strip 6 is a sweeping strip that presses against the inner wall of the pipe. During the pulling process of the adjustable pipeline magnetic leakage detection device, it first cleans the inner wall of the pipe, and then the pipeline magnetic leakage detection section 1 detects the pipe.

[0029] Compared to traditional pipe leak detection devices, it can be equipped with an adjustable cleaning ring, making it suitable for inner walls of different pipe diameters. It has a wide range of applications and provides good detection results after cleaning.

[0030] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. An adjustable pipeline magnetic flux leakage detection device, characterized in that: The system includes a pipeline magnetic flux leakage detection section, a cleaning ring frame, and a pressure regulating support ring frame. The cleaning ring frame and the pressure regulating support ring frame are installed on both sides of the pipeline magnetic flux leakage detection section. The cleaning ring frame has several annularly distributed cleaning telescopic rod mounting holes. A cleaning rotating telescopic rod is installed in each of the cleaning telescopic rod mounting holes. The top end of the cleaning rotating telescopic rod extends to the outside of the cleaning ring frame and is fitted with a cleaning splice ring. The pressure regulating support ring frame has several caster rod holes. A caster rotating telescopic rod is installed in each of the caster rod holes. One end of the caster rotating telescopic rod extends to the outside of the pressure regulating support ring frame and is connected to a roller on the inner wall of the pipeline through a pressure sensor. A wireless controller is installed on the outside of the pressure regulating support ring frame. Both the cleaning ring frame and the pressure regulating support ring frame are equipped with an electric drive unit.

2. The adjustable pipeline magnetic flux leakage detection device according to claim 1, characterized in that: The cleaning rotating telescopic rod consists of an outer cylinder, an inner cylinder, and a lead screw. A limit ring is installed at the top of the outer cylinder, and the bottom of the inner cylinder extends into the outer cylinder through the limit ring. The top of the lead screw is screwed into the interior of the inner cylinder.

3. The adjustable pipeline magnetic flux leakage detection device according to claim 2, characterized in that: The inner ring of the limiting ring is provided with a limiting protrusion, and the outer wall of the inner cylinder is provided with a limiting groove, and the limiting protrusion is inserted into the limiting groove.

4. The adjustable pipeline magnetic flux leakage detection device according to claim 1, characterized in that: The cleaning ring is composed of several deformation strips, and a cleaning strip is installed on the outer side of the deformation strips.

5. An adjustable pipeline magnetic flux leakage detection device according to claim 2, characterized in that: The electric drive unit consists of a motor and a bevel gear set. The bevel gear set consists of a motor bevel gear and a lead screw bevel gear meshing together. The lead screw bevel gear is mounted on the lead screw.

6. The adjustable pipeline magnetic flux leakage detection device according to claim 1, characterized in that: A battery box is installed on one end of the cleaning ring frame, and the battery box is provided with a pull ring.

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